Type-writing machine.



H. S. MCGORMAGK. TYPE WRITING MAGHINE. APPLICATION IILED 1 213.11, 1908.

\ Patented Nov. 17, 1908.

fiwenfor. Cmmo/C messes:

upon a long formed with facility.

adjustable to sultthe needs of all kinds of small sheets are beingwithdrawn from the machine.

sheet at that point on the ,platen which will record sheet, the rollsmust HARRY s. McOORMAOK, OF NEW YORK, N.

COMPANY, OF NEW YORK, N, Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MAonmn.

Specification of Letters Patent. Patented Nov, 17, 1908.

Application filed February 11, 1908. Serial No. 415,287.

I the rolls were well to the front, the sheet To all whom it mayconcern:

would rise straight up from the machine Be it known that I, HARRY S.MCCOR- MACK, a citizen of the United States, residing in New York in thecounty of New York and State of l\ew York, have invented certain new anduseful Improvements in Type-lVriting Machines, of which-the following isa specification.-

This invention relates to the paper feeding devices of typewritingmachines, and especially those of the front strike variety, in which itis desired to make carbon copies record sheet (to be subsequently boundinto a book) of checks. or other short statements or memoranda, whichare written and removed from the machine one after another while therecord sheet is retained in the machine.

One of the principal objects ofthe invention is to provide an attachmentwhich can readily be applied to existing machines for enabling thisvariety of work to be per- The record sheets in difierent ofiices varyin width and stiffness, and it frequently happens that the usual frontpaper-guiding fingers. are inefiicient to retain the record sheets, whenthe usual pressure rolls under the platen are cast ofif to permit thewithdrawal of thecheck, bill or other small sheet.

The object of my invention is to provide means readily applied,..to themachine and the other hand, in the case of a limp record sheet, therolls should not be carried so far back that there would be atendencyfor the leading edge of the record sheet to reenter the machine at theback of the platen, and other trouble caused.

By adjusting the rod forwardly and backwardly which carries the toppressure rolls, the latter may be caused to bear upon the platen at theexact point to meet the requirements of any particular width or style ofrecord sheet, and all difficulties may be avoided.

Preferably the adjustment of the rod, which carries the pressure rolls,is in a single horizontal plane, forwardly and rearwardly, and I providemeans for regulating the inthe rod and carry the pressure rolls whichrun upon the topvof the platen as aforesaid. By varying the inclinationof these pendent parts, compensation is made for difierent positions towhich the rodis adjusted. Each pressure roll moreover, has itsindividual spring for regulating-its own pressure against the platen, tocompensate for any inexactness in the adjustment of the inclination ofthe 'finger or device on which the roll is carried. A finger-piece isalso connected to said rod to enable the operator to swing the rollsaway. from the platen, for convenience in introducing the record sheetsinto the machine and in releasing them for withdrawal. The checks arefed record sheets, and to hold the latter firmly against the platenwhile the checks or other In carrying out my invention, I provide aplurality 0 pressure rolls to run upon the top of the platen to engagethe record sheet well above the printing line, and withthe requisiteforce, so that the record sheet cannot become accidentally misplacedduring the manipulation of the sheets in front thereof. These pressurerolls are carried upon a rod mounted over the platen and bodilyadjustable vforwardly and backwardly, to cause the rolls tobearupon' therecord one by one from rolls. 4 c 1 In the accompanying drawin s, Figure1 is a sectional side elevation ot an Underwood front strike writingmachine pro vided with my improvements; the pressure rolls beingshown asreleased from the platen. Fig. 2 is a perspective view to illustrate themanner of connecting a roll-carry ing rod with its journal in a mannerto permit relative rotative adjustment of the two. Fig. 3 is a frontelevation of the parts seen at Fig-l. Fig. tshows the pressure rollrelease key. Fig. 5 shows details of devices, whereby the roll-carryingrod is securable at difie'rent adjustments backward and forthe machinein front of said cause the sheet to take the proper direction as itpasses out of the machine. It will be understood that, in the case of aheavy stifi be carried well to the rear,to direct the sheet backwardlyas it emerges from the machine; since if Y.,.ASSIGNOR TO UNDERWOODTYPEWRITER clination of the fingers which depend fro mup in front of theplaten independently of. the aforesaid top. pressure rolls, and emergeand bother the operator in many ways. On

ward. Figs. 6 and 7 illustrate the different relative positions of therod and one of its journals seen at Fig. 2. Fig. 8 is a view similar toFig. 1, but showing the key depressed to cause the pressure roll to bearupon the front side of the platen. Fig. 9 is a View similar to Fig. 8,but showing the pressure roll as bearing upon the top of the platen.This figure also illustrates the man ner in which a check emerges fromthe machinein front of the pressure rolls.

The usual inked impressions are made by type bars 1 upon the front of apalten 2, which is journaled by means of an axle 3 in the ends 1 of aplaten frame, which also comprjses a rear paper shelf lressure rolls 6,7 run upon the under side of the platen and are usually releasable.Paperguiding fingers 8, 9 are usually carried upon a rod 10, whichextends from one platen frame end to the other, but these fingers arenot used in the operations for which my present improvements areespecially intended. They are shown as moved over to the ends of anextra long platen, where they are out of the way of the checks andrecord sheets that are to be written. My improvements are illustrated inthe form of an attachmentwhich may be readily applied to existingmachines, which' re usually provided with said fingers 8, 9. Obviouslyin performing other kinds of work than that herein particularly referredto, said fingers may be used in connection with my improve: ments. v

A long record sheet 11 is introduced. into the machine, and fedline-by-line by the rolls 6, 7. The usual overlying carbon sheet notshown. Upon the upper portion of the platen run two or more pressurerolls 12, which by means of instrumentalities hereinafter described, arecaused to bear with considerable force upon the record sheet, so that itis not likely to become disarranged when the rolls 6, 7 are cast off.The rolls 12 are carried upon a rod 13, which may be swung up by meansof a key 1+. to carry the rolls away from the platen, as at F 1, duringthe introduction of the record and carbon sheets. Then the key 11 isdepressed to swing the rolls down upon the record sheet.

The checks 1:) are introduced either singly .or in a connected series,and detached one by one as they are written. They are held. against theplaten by means of the usual curred loop of wire 16, which is mountedupon a'fixed portion 17 of the machine;

The checks emerge from the machine in front of the rolls 12, as seen atFig. 9. l t will be understood that as soon as one'cheru is written therolls 6, 7 are cast off and the sheet 1'5 drawn up. while the recordsheet 11 remains stationary. Then the succeedi l l l I I l l l l lrecord made on the sheet 11, and the operafollowing one another closelyupon the record sheet to economize.room thereon.

The rod 13 carrying said rolls 12 is bodily adjustable forwardly andrearwardly along the tops 18 of the platen frame ends. Yokes or supports19 in which said rod is j ournaled, are fixed upon bases 20, the latterbeing releasably secured by screws 21 upon a pair of plates 22, thelatter attachable by screws 23 to said tops 18 ofthe plateaframe, whichtops I usually provide with tapped holes, to which "said screws areadapted. The screws 21 are threaded into nuts 24, the latter hav-. ingsquared shanks 25 to fit in slots 26 eX- tending longitudinally in theplates 22. By releasing the screws 21', the supports 19 may be carriedforwardly or backwardly'along the plate 22 together with the rod 13, asfrom the Fig. 8 to'theFig. 9 position, and their the screws may betightened to secure the rod in its new position.

In order to tip the pendent fingersor de: vices carrying the rolls 12(said devices designated generally as 27) to compensate for thedifferent positions to which the rod 13 is adjusted forwardly andbackwardly, so that the rolls 12 may always run firmly upon the platen,I provide for relative rotative adjustment of the roll-carrying rod 13,and its journals 28 which turn in the yokes or brackets 19; saidjournals being constructed to have a. single rotative position when therolls 12 are running upon the platen, regardless of the forward andbackward adjustment referred'to. It will be seen that these journalshave longitudinal grooves 29, in which rolls 30 are pressed bybow-springs 31; said rolls being guided in suitable vertical slots 32formed in the upstanding ears 33 of the yokcs 19, Fig. 4. Upon the innerend of each journal is driven a tubular piece or sleeve 34, the innerend of which forms a socket to receive the end,of the rod 13,

- and said sleeve 34 is formed at its inner end with a head 36 toreceive set screws 37 to bear against the rod '13 and secure it atdifferent rotative adjustments. Said rod is shown provided with alongitudinal groove 38 to receive rolls 39 pressed by springs 10. thelatter carried upon yokcs 4:1 resembling the yokes 19, and slidablealong the rod 13, as well as independently rotatable thereon. Thesprings 31 and 40 are powerful, so that the rolls 12 are pressed withconsiderable force upon the platen or the paper thereon. Thus. it will.be seen that after adjusting the rod 13 bodily forward or backward. asfor instance from the Fig. 8 to the Fig. i) position, the screws 37 maybe loosened, and the rod 13 rotatably adjusted to change the in-('liuation of the fingers 27, as shown, so that j the rolls 12 may runfirmly upon the platen; mg check is written line by line. and its l thescrews 3( being tightenedto secnrethe rod 13 in its new position. Therelative adjustment of the rod and journal is illustrated at Figs, (5and T, Fig. 6 corresponding to Fig. 8, and Fig. 7 corresponding to Fig.9.

In order to compensate for 'any inaccuracies o adjustment and for othervpurposes, screws a2 may be turned to vary the- -l3 upon which the rollspressure of springs 12 are directly mounted; said screws threadedthrough ears 44' pendent from the yokes t1 and secured thereto by screws45.

The linger-piece 14 may be depressed to throw the rolls a ainst theplaten, and elevated to release the rolls, regardless-of any adjustmentof the rod 13. The finger-piece moves forwardly and bacliiwardlywith therod when the latter" is adjusted, and it is fixed by a screw 46 to theend of a journal 28, so as to rotate the latter and the rod. When thefinger-piece is lifted to cast off the pressure rolls, Fig. 1-, the roll30 is'forced down out of the groove :29, Fig. 4, and bears upon thecylindrical periphery of the-journal, and hence the springs 31 areincapable 'ournals back to normal poof turning the j sitions. ()n thecontrary, they cause such friction of the journals in their bearings asto detain the journals mechanically in roll releasing position, as atFig. 1, so that the key 14: may be relinquished, and-both hands of theoperator may be employ ed in manipulating the sheet 11.

Variations may be resorted to'within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, I claim:

1. Ina front strike writing machine, the combination with a revolubleplaten and a platen frame, of a rod mounted on the platen frame over theplaten and bodily adjustable forwardly and backwardly, means forsecuring the rod where adjusted, and pressure devices mounted upon saidrod to bear against the platen.

, 2. In a typewriting machine, tion with a revoluble platen and aplateil frame having ends, of a rod extending along the platen and overthe same, means supporting the ends of said rod-upon the ends of theplaten frame in a ananner to permit bodily adjustment of the rodforwardly and backwardly in a single plane, pressure devicespei'identfrom said rod to beartupon theplaten, means to permit rotativeadjustment of saidrod to vary the inclination of the pressure devices tocompensate for the forward and backward adjustment of the rod,and'meansfto secure the rod at different points in its rotation.

, combination vwith a revoluble platen and a platen frame, of supportsmounted upon said frame and adjustable forwardly and rearwardly, a rodextending along and over the -co1nbina-.

In a front strike writing machine, the

the platen and carried u on said supports, a pressure device mountedupon said rod, a spring to cause the pressure device to bear against theplaten, and'a finger-piece connected tothe rodto turn it and lift thepressure away from the platen, v 4, In a front strike writing machine,the combination with a revoluble platen and a platen frame, of supportsmounted upon said frame and adjustable forwardly and rearwardly, a rodextending along and over the platen and carried upon said supports, apressure device mounted upon said rod, a spring to c ause the pressuredevice to bear against the platen, and a finger-piece connected to therod to turn it and release the pressure device away from the platen;means being provided for. the mechanical maintenance of the rod andpressure device in released positions;

-5. Ina front strike writing machine, the combination with a revolubleplaten and a platen-frame, of supports mounted upon said and forwardadjustment of the rod, so that the pressure device may always bear uponthe cylindrical surface of the platen.

\ 6. In a typewriting machine, the combination with a'revolu'ble. platenand a platen frame having ends, of a rod extending along porting theends of said rod upon the ends of the platen frame in a manner to permitbodily adjustment of the rod forwardly and backwardly in a single plane,pressure devices pendent from said rod to bear upon the platen, means topermit rotative adjustment of said rod to vary theinclination of thepressure devices to compensate for the forward and backwardadjustment-of the rod, and means to secure the rod at different pointsin its rotation; each of said pressure devices having independent meansfor regulating its pressure upon the platen.

'7. In a front strike writing machine, the combination with a revolu'bleplaten and a platen frame, said frame and adjustable in a single planealong and over the platen 'and carried upon said supports, ap'ressuredevice mountedupon said rod, a spring to-cause the pressure device tobear against the platen, and a finger-piece connected-to the rod to turnit and lift the pressure device away from the frame and adjustable in asingle plane forthe platen and over the same, means sup- H of support-smounted upon forwardly. and rearwardly, a rod extending r to move thepressure deviees away from the platen; means being provided to. permitadustment of the pressure device to different inclinations to compensatefor the backward and forward adjustment of the rod, so thatthe pressuredevice may always bear upon the cylindrical surface of the platen; saidpressure device having independent pmeans for regulating its pressureupon the platen.

8. A paper-guiding attachment for type plate having a longitudinal slot,a pair of supports, screws to fasten said supports at differentpositions along said plates, said screws threaded into nuts fitted insaid slots, a rod extending along the platen, journals connected to theends ofv the rod and mounted upon said support-s, yielding means toprevent the journals from turning in said supports, the rod beingrevolubly adjustable relative to said journals and providedwith means tofasten it at different adjustments, and pressure devices adjustablealong said rod and bearing upon the platen; said rod being rotatablewith said journals platen: I

9. A paper-guiding attachment for typewriting machines, comprisinga'pair of forwardly and rearwardly extending plates to attach to theends of the platen frame, each plate having a longitudinal slot, a pairof supports, screws to fasten said supports at different positions alongsaid plates, said screws breaded into nuts fitted in said slots, a rodextending along the platen, journals connected to the ends of the rodand mounted upon said suports, yielding means to prevent the journalsfrom turning in said supports, the rod being re\ 'olnblyadjustablerelative to said journals and pro vided witlrmeans to fastenit at different I adjustments, and pressure devices {HljUSttlllk-yjalong said rod and bearing upon the platen; said rod being rotatablewith said ournals to move the pressure devices away from the platen, atingerp1e ':e. connected to onset said journals to swing the pressuredevices away from and back to the platen; means being provided formechanically detaining the rod and ournals in a position to hold thepressure. devices away from the platen.

10. A paper-guiding attachment for typewriting machines, comprising apair of forwardlyand rearwardly extending plates to attach to the endsof the platen frame, each plate having a longitudinal slot, a pair ofsuppo1.'ts,'screws to fasten said supports at different positions alongsaid plates, said screws threaded into nuts fitted in said slots. :1 rodextending along the platen. journals connected to the ends of the rodand mounted upon said supports, yielding j'ustable re ative to said.journals and provided with means to fasten it at different adjustments,and pressure devices adjustable along said rod and bearing upon theplaten; said rod being rotatable with said journals to move the pressuredevices away from the platen; sockets being provided upon said journalsin which the ends of said rod fit,

in different adjustments in the sockets; the rod being'concentricwiththe journals.

'11. In a front strike writing machine, the combination with a revolubleplaten and a platen frame,'of supports upon the ends of the platenframe, a rod extending along the rod and mounted upon said supports,yielding means to prevent the journals from turning in said supports,the rod being revolubly adjustable relative to said journals andprovided with means to fasten it at different adjustments, and pressuredevices adjustable along said rod' and bearing upon the platen;.said'rod being rotatable with said journals to move the pressure devices awayfrom the platen.

' 12. In a front strike writing machine, the combination with arevoluble platen and a platen frame, of supports upon the ends of theplaten frame, a rod extending along the platen, journals connected tothe ends of the rod and mounted upon said supports, yielding means toprevent the ournals from turning in said supports, the rod beingrevolubly adjustable relative to said journals and provided with meansto fasten it at different adjustments, and pressure devices adjustablealong said rod and bearing upon the platen; said rod being rotatablewith i said journals to move the pressure devices 1' away from theplaten, and a finger-piece being connected to the rod to turn it uponits journal to swing the pressure device .relatively to the platen. iThe combination with a revoluble l platen and a platen frame, of a rodextending along the platen, journals concentric with said rod andconnected to the ends 1 thereof and mounted upon the ends of the platenframe, yielding means to prevent the journals from turning, meansconnecting the rod to the journals to permit relative rotation thereof,and pressure devices adjustable along said rod and bearing upon theplaten.

1 t. The combination with a revoluble platen and a platen frame, of arod extending along the platen, journals concentric with said rod andconnected to the ends,

3 thereof and mounted upon the ends of the platen frame, yielding meansto prevent the E ournals from turning, means connecting the rod to theournals to permit relative rotaj tion thereof, and pressure devicesadjustable means to prevent the journals from turning 1 along said rodand bearing upon the platen;

in said sup orts, the'rod being revolubly ad-- and means being providedto secure the rod platen, journals connected to the ends of the saidjournals being longitudinally grooved, and spring pressed guided rollsengaging the grooves.

15. The combination with a revoluble platen and a platen f 'ame, of arod extending along the platen, journals concentric with said rod andconnected to the ends thereof and mounted upon the ends of the platenframe, yielding means to prevent the journals from turning, meansconnecting the rod to the journals to permit, relative rotationthercofand pressure devices adjustable along said rod and beari-nguponthe platen; said journals being longitudinally grooved, and springpressed guided rolls engagrng the grooves, said pressure devices beingsplined to said rod.

16. The combination with a revoluble platen and a platen frame. of a rodextend; ing along the platen, journals concentric with said rod andconnected to the ends thereof and mounted upon the ends of the platenframe, yielding means to prevent the journals from turning, meansconnecting the rod to the journals to permit relative rotationthereof,and pressure devices adjustable along said rod and bearing upon theplaten; said journals being longitudinally grooved, and spring pressedguided rolls engaging the grooves. said pressure devices being splinedto said rod. and having individual means for regulating their pressureagainst the platen.

17. The combination with a. revoluble platen and a platen frame, of arod extending along the platen, journals concentric with said rod andconnected to the ends thereof and monnted upon the ends of the platenframe. yielding means to prevent the 40 journals from turning. meansconnecting the rod to the journals to permit relative rotation thereof,and pressure devices adjustable along said rod and bearing upon theplaten; said rod bodily adjustable backwardly and forwardly.

18. The combination with a revoluble platen and a platen frame, of a rodextend ing along the platen, journals concentric with said rod andconnected to the ends thereof and mounted upon the ends of the platenframe,'yielding means to prevent the journals from turning, meansconnecting the rod to the journals to permit relative rotation thereof,and pressure devices adjustable along said rod and bearing upon theplaten; said journals being longitudinally grooved, and spring pressedguided rolls engaging the grooves; said journals being mounted uponsupports which are adjustable backwardly and forwardly upon the ends ofthe platen frame.

19; The combination with a revoluble platen and a platen frame, of a rodextending along the platen, journals concentric with said rod andconnected to the ends thereof and mounted upon supports which areadjustable backwardly and forwardly upon the ends of the platen frame,yielding means to prevent the journals from turning, means connectingthe rod to the journals to permit relative rotation thereof, andpressure devices adjustable along said rod and bearing upon the platen;said journals being longitudinally grooved, and spring pressed guidedrolls engaging the grooves, said pressure devices being splined to saidrod.

HARRY S. MoCORMACK.

\Vitnesses D. M. Amman, S. T. SMrrIL

